Improvement in window-sash stops



UNITED STATES PATENT OFFICE.

J. GREY JEWELL, OF WASHINGTON, DlSTRIC'l OF COLUMBIA.

IMPROVEMENT IN WINDOW-SASH STOPS.

Specitcat-ion forming part ot Letters Patent No. 79,835, dated July 14, iSGS.

To all whom it may concern:

Be it known that I, JAMES GREY JEWELL, ot' the city and county of Washington, and District of Columbia, haveinvented a new and lmproved Mode of Fastening Window Aing A a little oft' the center; D, the pin or handle for revolving the Wheel; E, a groove, corrugated, in which its the rubber ring; F, a projecting tooth from the Wheel A; g, a metallic socket-nail, in which F rests; i, the corrugations to prevent therubberfrom slipping; H, the Window-frame; G, the window-sash.

The nature ot" my invent-ion consists in providing an eccentric disk or Wheel with a corrugated groove in the edge of the same, to be made of metal, rubber, wood, porcelain, or other composition, Witha projecting tooth on the edge, with a rubber ring or band in the groove, this disk or wheel to be attached to the sash or bead of the Window-frame by a screw, so that when the window is raised and the rubber brought in contact with the bead or sash it will stop it at any elevation, and that Without injury to the Wood-work; and when the window is down, and it is desired to keep it thus, the disk or wheelmay be reversed in position, and by placing the projectingl tooth in the metallic socket provided forit the window cannot be raised.

When using the rubber ring as here described in warm climates or attached to heavyr windows, the contractile power of the rubber becomes lessened and its tendencjr is to slip in the groove. By corrugating the grooveit is impossible for the rubber'to slip by the application of any reasonable weight or relaxation fromV heat.

I do not claim the eccentric wheel or handle for revolving the same, as these have been used in various forms.

What I claim, and desire to secure lby Letters Patent, is A 1. The combination otl themetallic socketnail g with the tooth F, the s0cket-nail to be J. GREY JEWELL.

Witnesses JOHN BRADLY, CHAs. B. SHAW. 

